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3 years ago

BRO SOMEONE PLEASE HELP ME

Mathematics

1 answer:

zubka84 [21]3 years ago

3 0

Answer:

9/10

Step-by-step explanation:

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5x^2-7x=3x+8 is the equations linear

cestrela7 [59]

is there any answers or no?

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3 years ago

Use the rule a squared-b squared=(a+b)(a-b) to fully factorise:<br> f)9x squared-16

Alchen [17]

$9 x^{2}$ - 16 in factored form is;

(3x + 4)(3x - 4)

hope that helps :D

6 0

3 years ago

The ratio of girls to boys at basketball practice is 2:3. If there are 12 girls at practice then how many boys are there?

andre [41]

Answer:

Step-by-step explanation:

2 goes into 12 six times,

so multiply both sides of 2:3 by six to get 12:18

8 0

3 years ago

Evaluate ,where e is the solid that lies between the cylinders x^2+y^2=1 and x^2+y^2=16, above the xy-plane, and below the plane

MA_775_DIABLO [31]

Assuming you're just computing the volume, i.e.

$\displaystyle\iiint_E\mathrm dV$

we should convert to cylindrical coordinates first, setting

$\begin{cases}x=r\cos\theta\\y=r\sin\theta\\z=\zeta\end{cases}$

so that the volume is given by

$\displaystyle\iiint_E\mathrm dx\,\mathrm dy\,\mathrm dz=\int_{\theta=0}^{\theta=2\pi}\int_{r=1}^{r=4}\int_{\zeta=0}^{\zeta=r\sin\theta+4}r\,\mathrm d\zeta\,\mathrm dr\,\mathrm d\theta$

which has a value of $60\pi$ .

3 0

3 years ago

This is a A-E question! If you could assist me through each part, you will be rewarded brainliest and I'll obviously owe you big

otez555 [7]

We are given that revenue of Tacos is given by the mathematical expression $-7x^{2}+32x+240$ .

(A) The constant term in this revenue function is 240 and it represents the revenue when price per Taco is $4. That is, 240 dollars is the revenue without making any incremental increase in the price.

(B) Let us factor the given revenue expression.

$-7x^{2}+32x+240=-7x^{2}+60x-28x+240\\-7x^{2}+32x+240=x(-7x+60)+4(-7x+60)\\-7x^{2}+32x+240=(-7x+60)(x+4)\\$

Therefore, correct option for part (B) is the third option.

(C) The factor (-7x+60) represents the number of Tacos sold per day after increasing the price x times. Factor (4+x) represents the new price after making x increments of 1 dollar.

(D) Writing the polynomial in factored form gives us the expression for new price as well as the expression for number of Tacos sold per day after making x increments of 1 dollar to the price.

(E) The table is attached.

Since revenue is maximum when price is 6 dollars. Therefore, optimal price is 6 dollars.

6 0

3 years ago